公开(公告)号：US20160147174A1

公开(公告)日：2016-05-26

申请号：US14939057

申请日：2015-11-12

申请人： Makoto YASUDA ,  Jun HITOSUGI ,  Takamasa OZEKI ,  Mutsuki MORINAGA ,  Emiko SHIRAISHI ,  Wakana ITOH ,  Hitoshi YAMAMOTO ,  Takatsugu KOMORI ,  Kunio HASEGAWA ,  Tadashi KASAI ,  Kazuaki KAMIHARA ,  Kazumi KOBAYASHI ,  Hiroyuki KUNll ,  Masaki SUKESAKO ,  Yuichi AIZAWA ,  Masakazu TERAO ,  Masayoshi NAKAYAMA ,  Takuma HIGA ,  Masahiro KATOH ,  Kohei MATSUMOTO

发明人： Makoto YASUDA ,  Jun HITOSUGI ,  Takamasa OZEKI ,  Mutsuki MORINAGA ,  Emiko SHIRAISHI ,  Wakana ITOH ,  Hitoshi YAMAMOTO ,  Takatsugu KOMORI ,  Kunio HASEGAWA ,  Tadashi KASAI ,  Kazuaki KAMIHARA ,  Kazumi KOBAYASHI ,  Hiroyuki KUNll ,  Masaki SUKESAKO ,  Yuichi AIZAWA ,  Masakazu TERAO ,  Masayoshi NAKAYAMA ,  Takuma HIGA ,  Masahiro KATOH ,  Kohei MATSUMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0824 ,  G03G15/0844 ,  G03G15/0849

摘要： An image forming apparatus includes a latent image bearer; a developing device containing two-component developer and including a developer bearer, a development voltage source, and a toner concentration detector; a toner supply device to supply toner to the developing device; a transfer device; and a controller to keep a toner concentration in the developer in the developing device at a target toner concentration during image formation. The controller executes forced toner consumption in which the developing device supplies the toner to the latent image bearer the toner at a predetermined forced toner consumption timing, while inhibiting the toner supply device from supplying toner. When the toner concentration falls to a prescribed toner density lower than the target toner concentration, the controller completes the forced toner consumption and executes a post-consumption toner supply operation.

摘要翻译： 图像形成装置包括潜像载体; 包含双组分显影剂并包括显影剂承载体的显影装置，显影电压源和调色剂浓度检测器; 调色剂供应装置，用于向显影装置供应调色剂; 转移装置; 以及控制器，用于在图像形成期间将显影装置中的显影剂中的调色剂浓度保持在目标调色剂浓度。 控制器执行强制调色剂消耗，其中在抑制调色剂供应装置供应调色剂的同时，显影装置以预定的强制调色剂消耗时间将调色剂供给到潜像承载调色剂。 当调色剂浓度降低到低于目标调色剂浓度的规定调色剂浓度时，控制器完成强制调色剂消耗并执行消耗后调色剂供应操作。

公开(公告)号：US20180143581A1

公开(公告)日：2018-05-24

申请号：US15714610

申请日：2017-09-25

申请人： Masayoshi NAKAYAMA ,  Takuma HIGA ,  Masaki SUKESAKO ,  Masashi TACHI ,  Kazuaki KAMIHARA ,  Yuichi AIZAWA ,  Tomohide TAKENAKA ,  Kohei MATSUMOTO

发明人： Masayoshi NAKAYAMA ,  Takuma HIGA ,  Masaki SUKESAKO ,  Masashi TACHI ,  Kazuaki KAMIHARA ,  Yuichi AIZAWA ,  Tomohide TAKENAKA ,  Kohei MATSUMOTO

IPC分类号： G03G21/00

CPC分类号： G03G21/0094 ,  G03G15/0126 ,  G03G15/065 ,  G03G15/0907

摘要： An electrophotographic image forming apparatus includes a latent image bearer to rotate and bear a latent image, a charging device to charge the a latent image bearer, a developing device to develop the latent image with developer including toner and use a developing voltage including an AC component, and a lubricant applicator to apply lubricant onto a surface of the latent image bearer. An amount of the lubricant applied by the lubricant applicator onto the latent image bearer per centimeter in an axial direction of the latent image bearer is equal to or greater than 0.845 mg for a running distance of 1.0 kilometer of the latent image bearer, and a difference between a largest value and a smallest value of the developing voltage is in a range of 200 V to 400 V.

公开(公告)号：US20150160599A1

公开(公告)日：2015-06-11

申请号：US14561599

申请日：2014-12-05

申请人： Kazuaki KAMIHARA ,  Toshihiro SUGIYAMA ,  Takuma HIGA ,  Masayoshi NAKAYAMA ,  Hiroyuki KUNII ,  Masaki SUKESAKO ,  Wakana ITOH

发明人： Kazuaki KAMIHARA ,  Toshihiro SUGIYAMA ,  Takuma HIGA ,  Masayoshi NAKAYAMA ,  Hiroyuki KUNII ,  Masaki SUKESAKO ,  Wakana ITOH

IPC分类号： G03G15/08 ,  G03G15/16

CPC分类号： G03G15/50 ,  G03G15/1605 ,  G03G15/161 ,  G03G2215/0129

摘要： An image forming apparatus includes multiple image forming units each including a latent image bearer and a developing device, a transfer device to transfer toner images from the latent image bearers onto a surface of endless rotary member, a cleaner to clean the surface of the endless rotary member, and a control unit to execute a forcible toner consumption process to forcibly consume degraded toner stored in applicable one or more developing devices. The forcible toner consumption process includes a step of forming a toner image formed for forced consumption in a non-image region of the latent image bearer with an amount of toner corresponding to a difference between an image area ratio of a developed image and a prescribed threshold thereof when the image area ratio of the developed image is lower than the prescribed threshold.

摘要翻译： 图像形成装置包括多个图像形成单元，每个图像形成单元包括潜像载体和显影装置，将调色剂图像从潜像载体转印到无端旋转构件的表面上的转印装置，清洁器以清洁环形旋转体的表面 以及控制单元，执行强制消耗墨粉的处理，以强制地消耗存储在适用的一个或多个显影装置中的降解调色剂。 强制性墨粉消耗处理包括以与显影图像的图像面积比和规定阈值之间的差相应的调色剂量形成用于在潜像载体的非图像​​区域中强制消耗的调色剂图像的步骤 当显影图像的图像面积比低于规定阈值时。

公开(公告)号：US20100080576A1

公开(公告)日：2010-04-01

申请号：US12570332

申请日：2009-09-30

申请人： Masayoshi NAKAYAMA ,  Shinichi AKATSU ,  Tomohide TAKENAKA ,  Takuma HIGA

发明人： Masayoshi NAKAYAMA ,  Shinichi AKATSU ,  Tomohide TAKENAKA ,  Takuma HIGA

IPC分类号： G03G15/08

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/0848 ,  G03G15/5041 ,  G03G2215/00059 ,  G03G2215/00776 ,  G03G2215/0607

摘要： An image forming apparatus includes a latent image carrier, a developing unit to develop a latent image on the image carrier with developer including toner and carrier, a developer bearing member, a first detector to detect a toner adhesion amount per unit area of a toner image developed by the developing unit, a second detector to detect humidity, and a controller to calculate an index indicating toner chargeability of the carrier based on detection results of the toner adhesion amount obtained by the first detector and perform a given control process based on calculation results thereof and including a data storage unit to store an algorithm to correct the index to a specific value according to a specific humidity, based on detection results of the humidity obtained by the second detector. The controller corrects the index obtained based on the amount of toner adhesion based on the algorithm.

摘要翻译： 图像形成装置包括潜像载体，显影单元，用于在具有调色剂和载体的显影剂的图像载体上显影潜像，显影剂承载部件，第一检测器，用于检测调色剂图像的每单位面积的调色剂附着量 由显影单元显影，第二检测器检测湿度，以及控制器，基于由第一检测器获得的调色剂附着量的检测结果，计算载体的调色剂带电性的指标，并根据计算结果进行给定的控制处理 并且包括数据存储单元，其基于由第二检测器获得的湿度的检测结果，存储根据特定湿度将索引校正到特定值的算法。 控制器基于算法校正基于调色剂附着量获得的指数。

公开(公告)号：US20170003630A1

公开(公告)日：2017-01-05

申请号：US15265562

申请日：2016-09-14

申请人： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Jyunya SAKURABA ,  Hirokazu ISHII ,  Toshitaka YAMAGUCHI ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Shinya TANAKA ,  Masayoshi NAKAYAMA

发明人： Tatsuya OHSUGI ,  Kenji SUGIURA ,  Jyunya SAKURABA ,  Hirokazu ISHII ,  Toshitaka YAMAGUCHI ,  Hiroyoshi HAGA ,  Naohiro KUMAGAI ,  Seiichi KOGURE ,  Junpei FUJITA ,  Yuuji WADA ,  Kazuki YOGOSAWA ,  Shinya TANAKA ,  Masayoshi NAKAYAMA

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G15/1605 ,  G03G15/162 ,  G03G15/1665 ,  G03G15/1685

摘要： An image forming apparatus includes an image bearer, a transfer member, and a power source. The image bearer includes a plurality of layers. The transfer member forms a transfer nip between the image bearer and the transfer member. The power source outputs a transfer bias to transfer a toner image from the image bearer onto a recording sheet in the transfer nip. The transfer bias alternates between a transfer-side bias that causes the toner image to move from the image bearer to the recording sheet, and an opposite-side bias different from the transfer-side bias. A duty ratio of a time period, during which the opposite-side bias is output, relative to one cycle of a waveform, is greater than 50%.

摘要翻译： 图像形成装置包括图像载体，转印构件和电源。 图像载体包括多个层。 转印部件在图像承载体和转印部件之间形成转印辊隙。 电源输出转印偏压以将调色剂图像从图像载体转印到转印辊隙中的记录纸上。 转印偏压在导致调色剂图像从图像载体移动到记录片材的转印侧偏置之间交替，并且与转印侧偏压不同的相反侧偏置交替。 相对于波形的一个周期，输出相对侧偏压的时间段的占空比大于50％。

公开(公告)号：US20100215389A1

公开(公告)日：2010-08-26

申请号：US12709034

申请日：2010-02-19

申请人： Masaaki IMAHORI ,  Masayoshi NAKAYAMA

发明人： Masaaki IMAHORI ,  Masayoshi NAKAYAMA

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G15/55 ,  G03G15/553 ,  G03G2215/0129

摘要： An image forming apparatus includes an image carrier, a developer carrier, a runout measurement information storage unit to store runout measurement information of the image carrier and the developer carrier, including runout amounts on the circumference of the image and developer carriers in a development area, a development gap measurement information storage unit to store information obtained by measuring a development gap when runout measurement points of the image and developer carriers face each other, and a development electric field strength control unit to obtain each development electric field strength based on the runout measurement information and the development gap measurement information, and determine control contents of development electric field strength control to cause the entire development electric field strengths to fall within an acceptable range of a target electric field strength to perform the control contents.

摘要翻译： 图像形成装置包括图像载体，显影剂载体，跳动测量信息存储单元，用于存储图像载体和显影剂载体的跳动测量信息，包括在显影区域中的图像和显影剂载体的圆周上的偏移量， 显影间隙测量信息存储单元，用于存储当图像和显影剂载体的跳动测量点彼此面对时通过测量显影间隙获得的信息;以及显影电场强度控制单元，用于基于跳动测量获得每个显影电场强度 信息和开发间隙测量信息，并且确定开发电场强度控制的控制内容以使整个显影电场强度落入目标电场强度的可接受范围内，以执行控制内容。

公开(公告)号：US20100027344A1

公开(公告)日：2010-02-04

申请号：US12510745

申请日：2009-07-28

申请人： Reiji MOCHIDA ,  Yasuhiro TOMITA ,  Kazuyuki KOUNO ,  Hoshihide HARUYAMA ,  Masayoshi NAKAYAMA

发明人： Reiji MOCHIDA ,  Yasuhiro TOMITA ,  Kazuyuki KOUNO ,  Hoshihide HARUYAMA ,  Masayoshi NAKAYAMA

IPC分类号： G11C16/04 ,  G11C7/00 ,  G11C5/14

CPC分类号： G11C16/30 ,  G11C5/147

摘要： A drain voltage generator circuit includes a first switching element coupled between a first power supply voltage and an output end of the drain voltage generator circuit, a second switching element coupled in parallel to the first switching element and having a smaller current capability than that of the first switching element, and a control circuit for turning ON the second switching element and then the first switching element, and generates a voltage to supply to a drain of a memory cell. A source of the memory cell is set to be floated or grounded by a transistor.

摘要翻译： 漏极电压发生器电路包括耦合在第一电源电压和漏极电压发生器电路的输出端之间的第一开关元件，与第一开关元件并联耦合并具有比第一开关元件小的电流能力的第二开关元件 第一开关元件，以及用于接通第二开关元件然后接通第一开关元件的控制电路，并且产生供给到存储单元的漏极的电压。 存储单元的源极被设置为由晶体管浮置或接地。

公开(公告)号：US20090103954A1

公开(公告)日：2009-04-23

申请号：US12251580

申请日：2008-10-15

申请人： Masayoshi NAKAYAMA ,  Yoshitaka Fujinuma ,  Susumu Tateyama ,  Tatsuya Kubo

发明人： Masayoshi NAKAYAMA ,  Yoshitaka Fujinuma ,  Susumu Tateyama ,  Tatsuya Kubo

IPC分类号： G03G15/08

CPC分类号： G03G15/0808 ,  G03G2215/0844

摘要： A developing device that can suitably discharge developer from the developing device by the amount of developer in the developing device increased by carrier supplemented into the developing device, including: a supply transport screw and a receiving transport screw, the rotational axes of which are mutually parallel in relation to an image support member and which are arranged in a top and bottom positional relationship, and an inclined transport screw which is arranged at an incline between one end of the supply transport screw and the other end of the receiving transport screw; supply means for supplying new carrier into a casing; and a discharge port and discharge means for discharging part of the developer housed in the casing to the outside, the discharge port being provided on the part of the casing corresponding to the upper part of the inclined transport screw.

摘要翻译： 一种显影装置，其能够通过辅助显影装置的载体的显影装置中的显影剂的量适当地将显影剂从显影装置排出，包括：供给输送螺杆和接收输送螺杆，其旋转轴相互平行 相对于图像支撑构件而布置成顶部​​和底部位置关系，以及倾斜的输送螺钉，其设置在供给运送螺杆的一端和接收运送螺钉的另一端之间的倾斜处; 用于将新载体供应到壳体中的供应装置; 以及用于将容纳在壳体中的一部分显影剂排出到外部的排出口和排出装置，排出口设置在与倾斜传送螺杆的上部对应的壳体的一部分上。

公开(公告)号：US20100027352A1

公开(公告)日：2010-02-04

申请号：US12489870

申请日：2009-06-23

申请人： Masayoshi NAKAYAMA ,  Kazuyuki Kouno ,  Reiji Mochida ,  Hoshihide Haruyama

发明人： Masayoshi NAKAYAMA ,  Kazuyuki Kouno ,  Reiji Mochida ,  Hoshihide Haruyama

IPC分类号： G11C16/04

CPC分类号： G11C16/16 ,  G11C16/344 ,  G11C16/3445

摘要： In a non-volatile semiconductor memory device, variations in voltage applied to a bit line when an erase voltage applying step is repeatedly executed are suppressed, thereby reducing variations in Vt after erasure. A memory array includes memory cells arranged in an array, a plurality of word lines, and a plurality of bit lines and main bit lines. The memory array also includes a usable region which can store data and an isolation region which cannot store data. Each bit line provided in the usable region is connected via a select transistor to the corresponding main bit line. At least one main bit line is connected not only to a bit line of the usable region, but also to a bit line of the isolation region via a select transistor.

摘要翻译： 在非易失性半导体存储器件中，抑制了当擦除电压施加步骤被重复执行时施加到位线的电压变化，从而减少了擦除后Vt的变化。 存储器阵列包括以阵列布置的存储器单元，多个字线以及多个位线和主位线。 存储器阵列还包括可存储数据的可用区域和不能存储数据的隔离区域。 提供在可用区域中的每个位线通过选择晶体管连接到相应的主位线。 至少一个主位线不仅连接到可用区域的位线，而且还经由选择晶体管连接到隔离区域的位线。

公开(公告)号：US20080247786A1

公开(公告)日：2008-10-09

申请号：US12060606

申请日：2008-04-01

申请人： Masayoshi NAKAYAMA ,  Yoshitaka FUJINUMA ,  Susumu TATEYAMA ,  Tatsuya KUBO

发明人： Masayoshi NAKAYAMA ,  Yoshitaka FUJINUMA ,  Susumu TATEYAMA ,  Tatsuya KUBO

IPC分类号： G03G15/09

CPC分类号： G03G15/0921 ,  G03G2215/0634

摘要： A disclosed developing device includes a developer carrier including a developing sleeve and a magnetic roller provided inside the developing sleeve. The magnet roller includes a regulating magnetic pole and a pump-up magnetic pole that have different polarities from each other. Among an entire region of the moving surface of the developing sleeve in the surface movement direction, a maximum pump-up magnetic force position where the pump-up magnetic force of the pump-up magnetic pole is maximum faces an upstream position with respect to a supplying position at which the developer is supplied from a supplying screw to the developing sleeve.

摘要翻译： 所公开的显影装置包括显影剂载体，该显影剂载体包括设置在显影套筒内部的显影套筒和磁性辊。 磁辊包括彼此具有不同极性的调节磁极和泵浦磁极。 在显影套筒的表面移动方向的移动表面的整个区域中，泵送磁极的泵浦磁力最大的最大泵送磁力位置面向相对于 供应位置，显影剂从供应螺杆供应到显影套筒。